George w



(No Model.)

G. W. DIGKEY & T.. A. HARDING..

GAB GOUPLING.

Patent ed May 15, 1894,*

NNNNNNNNNNNNN c.

UNITED STATES PATENT OFFICE.

GEORGE W. DICKEY AND THOMAS A. HARDING, OF DES MOINES, IOWA, ASSIGNORS TO THE DICKEY AUTOMATIC CAR-OOUPLER COMPANY,

OF SAME PLACE.

CAR-COUPLlNG.

SPECIFIGATION forming part of Letters Patent No. 519,700, dated May 15, 1894. Application filed January 15, 1894. Serial No.49'7,005. (No model.)

To aZZ whom 't may concern.-

Be it known that we, GEORGE W. DICKEY and THOMAS A. HARDING, citizens ofthe United States of America, residing at Des Moines, in the oounty of Polk and State of Iowa, have invented a new and useful Car- Ooupling, of which the following is a specifioation.

Our invention relates to the master-carbuilders type of. automatic car oouplings and to that species in which a jaw is pivotally oonnected with a draw head and looked in a closed position, by means of a pin, and also moved ontward into an open position by the movement of the pin as required to unlock the jaw.

Our objeot is to prevent the damage and breaking incident to this class of car couplers by the force of the impact of two mating jaws when brought violently together by the motions of cars anda train on a track and also to guard the looking pin in the oavity of the draw head from contact with a coupling link when the jaw is closed and to prevent anything from getting into the oavity of the draw head and in rear of the rear end of the jaw when the jaw is in an open position.

Our invention consists in the construction, arrangement and oombination of a draw head, a jaw and pin guard and a jaw-looking and jaw-operating pin as hereinafter `set forth,

4 pointed out in our claims 'and illustrated in the aooompanying drawings, in which- Figure l is a bottom view of the upper half section of the draw head showing the under side of the pivoted jaw and the jaw in a closed position and looked by means of the pin and the pin protected by means of the guard integral with the jaw. Fig. 2 is a top View of the lower half section of the draw head and also a *top view of the pivoted jaw' in a closed position and the upper end por-` tion of the looking pin cut off on a level with the face of the jaw and the top edge of the guard integral with the jaw. Fig. 3 is a sectional view through the draw head,the jaw and the guard on the lineacoin Fig.l and the locking pin complete and in position as required to look the jaw. Fig. 4 is a sectional view of the draw head,the jawand pin guard on the line za shown in Fig. 2 and the looking pin complete and in position as required to look the jaw in its closed position. Fig. 5 is a pei-spective view showing the complete invention and the jaw in a closed and locked position. Fig. 6 is a rear face view of the jaw in an inverted position showing the shoulder on the inner end portion and bottom side adapted to engage a corresponding shoulder in the bottom portion of the oavity in the draw head, the rear end of the jaw adapted to engage the wall of the oavity as clearly shown in Fig. 2 and also showing the -pin guard extended beyond the rear end of the jaw. Fig. 7 is a viewshowing the straight back of the looking pin and the lower lateral projection that engages the inclined lower face of the rear end of the jaw as required to open the jaw when the pin is lifted.

The letter A designates a draw head that has a oavity adapted for receiving and supporting the jawpivoted thereto.

A is an angular-shaped portion of the oavity into which the upper portion of the rear end of the jaw enters to abut against the wall of the oavity and to be supported thereby, as shown in Fig. 2, when the jaw is subjeoted to violent rearward pressure.

A shown in Fig. 4, is a shoulder on the under .side and rear portion of the oavity adapted to engage a shoulder on the under side of the jaw to aid in supporting the jaw when subjeoted to rearward pressure occasioned by impact when in praotioal use or when subjeoted to the force of a falling weight to test the ooupling.

B is, a jaw fitted and pivoted to'the forward vextension of the jaw in such a manner that its rear end portion will extend into the oavity in the draw head as required to be looked fast therein by means of a pin. The upper portion and rear end B of the j aw is adapted to enter the angular corner A of the oavity and B is a shoulder on the under side of the jaw adapted to engage the shoulder A on the' %nder side of the oavity as clearly shown in B represents an inclined bottom portion of the rear end of the jaw adapted to be en- IOO gaged by the jaw looking and jaw-operating pin as required to move the jaw into an open position by lifting the pin to unlock the jaw. C is a pin guard integral with the rear end 5 of the jaw and adapted in shape to cover and protect the pin and also to aid in supporting the jaw from the force of rearward pressure when in practical use and subjected to the impact of a mating jaw on a car in a moving train and also to cover the approach to the cavity in the draw head and prevent the end of a coupling link from entering.

D is a pin adapted to be passed down througha pin hole in the upper part of the wall of the cavity in the draw head and, after making about one eighth of a revolution, to have its lower portion pass through another pin hole in the lower portion of the draw head, as shown in Figs. 3 and 4:, and as required to look the ;jaw in a closed position and also at the same time prevent the pin from accidentally jumping and escaping upward when the car and coupling are subjected to jarring and concussion.

D is a lateral projeotion, below the head of the pin D, that is fitted to enter the space between the guard C and the rear end of `the jaws, as clearly shown in Fig. 2, to lock the jaw in its closed position. The bottom of the projection D is inclined in such a manner that when the rear top edge 13 of the jaw comes in contact therewith in its rearward or inward movement it will lift the pin D and allow the jaw to abut against the angular wall A and when the jaw is thus admitted into the cavity in the draw head the pin D will drop and lock the jaw in position as clearly shown in Fig. 2.

D is a lateral projection at the lower portion of the pin D and stands at an acute angle relative to the projection D so that the pin must be turned about an eghth of a revolution in its up-and-down motions through the pin holes in the draw head. Thetop face of the lowerprojection D is an inclined plane adapted to engage the inclined surfaoe B on the under side of the rear portion of the jaw B as required to push the jaw into an open position, as indicated by dotted lines in F'g. 1, whenever the pin is lifted to unlock the jaw.

From the foregoing description of the construction and function of each part the prac- \i tical operation of our invention is Obvious. It is also Obvious that any blow or rearward pressure upon thejaw B will be distributed to different points by means of the angular jaw supports A and the shoulder A in the draw head and the end B and the shoulder B of the jaw B and the pin D, as required to prevent the jaw from breaking or of any undue rearward movement and the bending or breaking of the pivotal pin F that connects the jaw with the forward extension of the draw head. It is also Obvious that when the jaW B is in an open position, as indicated by dotted lines in Fg. 1, the guard C will' prevent the front part of a mating jaw from passing rearward and getting into contact with the rear end B of the open jaw, or wedging fast between the rear end of the open jaw and the drawhead.

WVe claim as our inventionw 1. In a car coupling of the species described, a jaw adapted to be pivoted to a draw head and having a rearward extension adapted to enter an angularspacein the cavity of a draw head to abut against the wall of said cavity and a shoulder on the under side of said extension adapted to abut against a corresponding shoulderin the bottom of the same cavity, in combination With a draw head having a cavityadapted to admit the rear extension of the jaw and to support it in the manner set forth, for the purposes stated.

2. In a car-ooupling the jawB having a rear extension terminating in an angular end 13 and provided with a shoulder B on its under side in combination with a draw head A having an open cavity and angular space A adapted to admit the end 13 of the jaw and a shoulder A adapted to engage the shoulder B of the jaw,in the manner set forth for the purposes stated.

3. In a car coupling, the jaw looking pin D having aprojection D and the bottom face of the projection inclined to be engaged and lifted thereby by means of a jaw, and a projeetion D inclined on its top face to engage and move a jaW, in combination with a draw head and a jaw pivoted thereto, as and for the purposes stated.

4. In a car-coupling, the combination of a pvotal jaw having an integral pin guard C and inclined face on its under side, and a jaw looking pin D having a projection D at its upper portion and an inclined face at the bottom thereof and a projection D at its lower portion provided with an inclined top face adapted to engage the inclined face on the under side of the jaw, io operate in the nanner set forth, for the purposes stated.

5. An improved car coupling conprising a draw head having a cavity in its front face and an angular space A and a shoulder .A in said cavity, a pin hole in the top and a pin hole in the bottom intersecting said cavity and said pin holes forning an acute angle as set forth, a jaw pivoted to the draw head and having a rear extension provided With an angular end 15 and a shoulder 13 an inclined under side and an integral pin-guard C and a jaw locking pin D having a projection I) at its top portion and a projection D at its lower portion and an inclined top face on the said projection D arranged and Combined to operate in the mannerset forth for the purposes stated.

GEORGE W. DIOKEY. THOMAS A. I-IARDING.

\Vitnessesz J. RALPH ORWIG, THOMAS G. ORWIG.

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